Skin massage roller



FIG. 1 is a front view of a skin massage roller showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is an enlarged top plan view thereof;

FIG. 4 is an enlarged bottom plan view thereof;

FIG. 5 is a right side view thereof, the left side view being a mirror image of FIG. 5; and,

FIG. 6 is a perspective view. 

The ornamental design for a skin massage roller, as shown and described. 